Question

FAO Figure 1 2. A thin wire of length L has a uniform charge density +1.A cylindrical Gaussian surface of radius d is drawn with the wire along its central axis, as shown above. Point P is located at the center of one end of the cylinder, a distance d from the end of the wire. Point Q is on the edge of the cylinder directly above the center of the wire, as shown above. A student says, "Gauss's law can be used to find the electric flux o through the Gaussian surface." (a) Is the student's statement correct or incorrect? Correct _ Incorrect If you have chosen "Correct," use Gauss's law to find the electric flux • through the Gaussian surface. If you have chosen "Incorrect," explain why the student's reasoning is incorrect and why Gauss's law cannot be applied in this situation. (b) Two students discuss whether or not they can use Gauss's law to find the electric field at points P and Q. At which of the points, if either, is Gauss's law a useful method for finding the electric field? At point P only - At point Q only At both points P and Q _ At neither point P nor point Justify your answer.